Ripcords are the ideal go-anywhere fitness tool. They are highly versatile, allowing you to target a variety of muscle groups, such as those used in sports-specific movements. Ripcords work the whole muscle, including the stabilizers and provide tension throughout the entire movement of the exercise. We construct our resistance tubing using the RPC Sequential Layering ProcessTM. This proprietary method is superior to any other process including extruding or dipping, used by our competitors. Not only does it result in extremely strong and durable tubing but it is a more sustainable manufacturing process that requires less fossil fuel use. We back up this claim with our Lifetime Warranty. The Ripcords® Advantage * Manufactured using the RPC Sequential Layering ProcessTM * Each Ripcord comes with its own durable handles - no need to clip and unclip between exercises * Ripcords® are the strongest on the market with resistance levels of 3-62 lbs * Circuit7® Ripcords® DVD provides 3 highly efficient circuit routines that you can do at home * Lifetime Warranty * 90 day Money Back Guarantee * Door Attachment provides hundreds of additional exercises Guarantee We are so confident that Ripcords® and the Circuit7® will transform your body, we guarantee it! If for any reason you are not completely satisfied with the way you look and feel within 90 days, simply send it back for a full refund, no questions asked. Warranty Ripcords® are strong. And we back them up with a 100% Lifetime Warranty. If they do break, simply return them and we will replace them absolutely FREE. You pay only a small shipping and handling fee.